Thompsontown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsontown, a borough in Juniata County, Pennsylvania.
Overnight
51°F
Patchy Fog
Patchy fog before 4am. Mostly cloudy, with a low around 51. North wind around 3 mph.
7-day forecast for Thompsontown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Patchy Fog | 3 mph N | 0% |
| Saturday | 74°F | Partly Sunny | 2 mph E | 3% |
| Saturday Night | 60°F | Rain Showers | 1 to 7 mph SE | 81% |
| Sunday | 75°F | Rain Showers | 2 to 7 mph S | 87% |
| Sunday Night | 54°F | Showers And Thunderstorms | 2 to 7 mph NW | 79% |
| Monday | 68°F | Mostly Cloudy | 3 to 7 mph N | 13% |
| Monday Night | 50°F | Chance Rain Showers | 3 to 7 mph NE | 49% |
| Tuesday | 60°F | Rain Showers Likely | 7 mph E | 57% |
| Tuesday Night | 48°F | Chance Rain Showers | 5 to 9 mph E | 48% |
| Wednesday | 60°F | Chance Rain Showers | 6 to 9 mph E | 44% |
| Wednesday Night | 48°F | Chance Rain Showers | 7 mph NE | 36% |
| Thursday | 62°F | Chance Rain Showers | 3 to 7 mph NE | 37% |
| Thursday Night | 48°F | Chance Rain Showers | 3 mph NE | 37% |
| Friday | 66°F | Chance Rain Showers | 5 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov) for Thompsontown (40.566, -77.236). Updated through the day.
Growing snapshot for Thompsontown
Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
6b
More local growing data for Thompsontown: nearby ZIP 17094 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lewistown, Pa (18.2 mi from Thompsontown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.